Finding the Fourth Proportional to 73,177.88, 100,986.08 and 39,643.88
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Solution
The fourth proportional to 73,177.88, 100,986.08 and 39,643.88 is: 54,708.88
Step by Step Solution
- Step 1: Write the proportion equation
73,177.88 : 100,986.08 = 39,643.88 : x - Step 2: Convert to fraction form
73,177.88/100,986.08 = 39,643.88/x - Step 3: Cross multiply
73,177.88x = 100,986.08 × 39,643.88 - Step 4: Simplify right side
73,177.88x = 4,003,479,334.04 - Step 5: Solve for x
x = 4,003,479,334.04/73,177.88 - Step 6: Final answer
x = 54,708.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.